[TASK] Organize Install Tool JavaScript modules into directories

For organizational purposes the Install Tool JavaScript modules are now
grouped into directories matching their parent module.

Resolves: #88880
Releases: master
Change-Id: Ifc9844f6e044e1b1ea6ebd394a433d7bf1ae014e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61397


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Susanne Moog <look@susi.dev>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Susanne Moog <look@susi.dev>